Who patented rubber today?

220px-Charles_GoodyearJune 17, 1837 — Charles Goodyear obtained his 1st patent to produce rubber today. His discovery was not yet perfected, as the rubber could not withstand hot or cold temperatures.

However seven years later, nearly to the day — June 15, 1844 — Goodyear’s team solved the problem and patented vulcanized rubber, a much more durable material.

Sourcegoodyear.com

Image: wikipedia.org